Improvement in hydraotiic presses



Ctutcd gitarre @att-nt (119mm.

AGUR JUDSON AND STEPHEN A. FARRINGTON, 0F NEWARK, NEW

JERSEY.

Letters Patent N 92,057, dated Jnme 29, 186i).

IMPROVEMENT IN HYDRAULIC PRESSES.

The Schedule referred to in these Letters Patent and making part ofthe same.

To all whom it may concern:

Be it known that we, Aeon JUDsoN and STEPHEN A. FARRINGTON, both ot' the cit-y of Newark, county of Essex, and State of New Jersey, haveinvented certain Improvements in Hydraulic Presses; and we do hereby declare that the following, taken in connection with the drawings which accompany and form part of this specification, is a description of our invention sntticient toy enable those skilled in the art to practise it.

Our in'lprovements relate to that class of hydraulic (or other' power) press, iu which is to be compressed a series ot tiat articles, laid upon aseries of plates, one above the other, in such manner, that when the power is applied, each plate in succession is pressed against the next, until the whole ot'I the series is placed under pressure to the degree and for the length of time desired. v

ln such presses, as heretofore constructed, the several plates arev linked or connected together in such manner, that when the pressure is removed from beneath, each plate will hang suspended from the one next above it, a distance equal to the length of the link, or other means ot' suspension, this separation of the plates from each other' being necessary, in order to facilitate the removal therefrom ot' the articles pressed, and for the substitution of 4others to be pressed.

Such a construction is found to entail certain didi culties and expense, and delays in the removal ot' a plate, for repairs or otherwise, which it is the object of our invention to avoid.

\Ve have illustrated our invention, applied to a press such as is now used in linseed-oil factories, for the purpose of pressing the oil from the seed, or rather from the eake, so called, and for which purpose it is more especially designed, although, as will be evident, equally adapted for any similar'or kindred pui-posee ln the drawings- Figure l represents a centravertical section of a press, with our improvements applied thereto;

Figure 2, atiagmentary view of the same, the red lines indicating the position ofthe parts when the cakes are under pressure; and

Figure 3, one ot' the plates detached from the press.

A indicates the frame of the press;

B, the shaft or spindle, which, by hydraulic or other vmade so as to contain it, and permit its discharge at a proper mouth or lip, as shown at d.

They are made, it will be seen, complete each in itself as a simple pan, having no connection or means of connection whatever with any other pan ot' the selever F, of such prot-uberauce lthat when it bears against the edge of one ot' the plates, it will cause the hook on the same lever to stand oft' and out of contact with the plate or plates beneath, the lever being so hung, and a stop-pin, fi, for each being s o located, that when such swell is not iii contact with a plate, the hook, by the force of the weight j, will be permitted to move inward far enough t0 pass under the plate, and form a rest on which it willb'e supported. A set of these hooks Abeing applied to each corner of 'the li'ame, in such positions that every plate may, as shown in tig. 1, rest at each corner upon a hook, and so that when pressure is applied to the press, each plate is unobstructed in its upward movement, as' will be plainly seen by reference to tig. 2, it willbe observed that ythe arrest of the several plates, at proper and equal distances, by the hooks, is automatic and certain. Y

Vit-h/such a construction, whenever a plate or pin may become warped or bent, or in any way damaged,

any one separately may be readily removed, without disturbing the harmony or eliciency of the remainder in their true action, by simply unscrewing and r moving, for Ythe moment, from one side ot' the machin two of the vertical guides, and then withdrawing the loose plate.

Upon replacing the guides, the apparatus is at once ready again for use.

It will be seen, that when the plates are all corn-- pressed together, as shown in lig. 2, andthe pressure is taken oli', and the plates descend, the, top one only of the compact series is first caught and Yheld by the hooks, for the reason that there is no plate above it, to act on the swells h, and force the hooks outward against the action ot' the weights.

When the top plate is thus caught and held, the next plate beneath will have passed below the swells.

of the next set of levers, and there will be nothing to prevent their hooks, in a similar manner, from moving inward,'and catching and detaini'ng the next pla-te, and v this action is thus repeated throughout the series.

lt is evident that springs might be employed, to perform the duty ot' the weights, but we donot deem them so simple or eiiicient for the purpose.

The shape of the levers may also be varied, as desired, without departing from the spirit of our invention, and pins thereon might serve for hooks, the essentiel features of onr invention being that the levers shall be so shaped and actuated, that they shall antomatic-ally catch und hold the plates when desired7 and refuse to 'take and hold them when not desired, and also, that each `plate shall he entirely .disconnected from the others.

We claim the self-acting levers, havingv the swell :md hook, 0r their equivalents, thereon, the swell having a. prominence exceeding that of the hook, when the lever is used in combination with a plattez D, substantially as shown and described.

\Ve also claim zt series of disconnected plates, cornbined with :t series of self-acting hook-levers, constructed substantially as described.

AGUR JUDSON. i STEPHEN A. FARRTNGTON.

Witnesses:

RALPH M. PAINE, WM. HOLMES. 

